From 1ec2b1d228a14b828102a9ac2678a5a9bb8523c4 Mon Sep 17 00:00:00 2001
From: Rivo Laks <rivolaks@hot.ee>
Date: Mon, 16 Jul 2007 11:50:01 +0000
Subject: [PATCH] Don't try to draw icon for windows that don't have one

svn path=/trunk/KDE/kdebase/workspace/; revision=688598
---
 effects/boxswitch.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/effects/boxswitch.cpp b/effects/boxswitch.cpp
index 870ae8dde3..afd2401cb3 100644
--- a/effects/boxswitch.cpp
+++ b/effects/boxswitch.cpp
@@ -545,6 +545,12 @@ void BoxSwitchEffect::paintWindowIcon( EffectWindow* w )
     {
     if( !windows.contains( w ))
         return;
+    // Don't render null icons
+    if( w->icon().isNull() )
+        {
+        return;
+        }
+
     if( windows[ w ]->icon.serialNumber() != w->icon().serialNumber())
         { // make sure windows[ w ]->icon is the right QPixmap, and rebind
         windows[ w ]->icon = w->icon();